KORALESKI JOHN J

Director at MARTIN MARIETTA MATERIALS INC · on record since Aug 15, 2016
Director at UNION PACIFIC CORP · on record since Aug 13, 2012
EVP MKTG & SALES at UNION PACIFIC CORP · on record since Jan 6, 2005

Insider trading activity of KORALESKI JOHN J

Transactions on record: 276; since Jan 26, 2004

Open-market buys: 6; $1.4M

Open-market sells: 4; $4.9M

Companies traded: 2; last filing Mar 2, 2026

Figures computed from official regulatory filings — .

Companies where KORALESKI JOHN J has traded

MARTIN MARIETTA MATERIALS INC51 tx · $3.2M · Mar 2, 2026
UNION PACIFIC CORP225 tx · $139.9M · Mar 11, 2015

Track record of KORALESKI JOHN J

Statistical track record

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Open-market buys: 6

Last buy: May 13, 2020

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Transaction history of KORALESKI JOHN J

Co-insiders of KORALESKI JOHN J

Ables Dorothy MMARTIN MARIETTA MATERIALS INC
ADAMSON RICHARD GMARTIN MARIETTA MATERIALS INC
ANSCHUTZ PHILIP FUNION PACIFIC CORP

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MARTIN MARIETTA MATERIALS INCListing on record	Mar 2, 2026	Award	69	676.57 USD	$46.7K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 1, 2025	Award	75	623.24 USD	$46.7K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 2, 2025	Award	76	616.40 USD	$46.8K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 3, 2025	Award	85	547.55 USD	$46.5K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 16, 2025	Award	308	552.86 USD	$170.3K	Unusual size	SEC
MARTIN MARIETTA MATERIALS INCListing on record	Mar 3, 2025	Award	96	483.14 USD	$46.4K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 3, 2024	Award	78	600.00 USD	$46.8K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 3, 2024	Award	87	534.16 USD	$46.5K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 4, 2024	Award	81	572.80 USD	$46.4K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 17, 2024	Award	293	581.69 USD	$170.4K	Unusual size	SEC
MARTIN MARIETTA MATERIALS INCListing on record	Mar 4, 2024	Award	76	577.71 USD	$43.9K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 4, 2023	Award	95	464.59 USD	$44.1K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 5, 2023	Award	99	446.41 USD	$44.2K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 2, 2023	Award	111	398.04 USD	$44.2K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 12, 2023	Award	362	400.57 USD	$145K	Unusual size	SEC
MARTIN MARIETTA MATERIALS INCListing on record	Mar 1, 2023	Award	122	359.87 USD	$43.9K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 2, 2022	Award	120	366.48 USD	$44K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 1, 2022	Award	127	347.41 USD	$44.1K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 2, 2022	Award	130	339.38 USD	$44.1K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 16, 2022	Award	443	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Mar 1, 2022	Award	116	379.40 USD	$44K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 2, 2021	Award	109	403.51 USD	$44K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 2, 2021	Award	115	381.25 USD	$43.8K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 1, 2021	Award	121	363.65 USD	$44K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 17, 2021	Award	388	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MARTIN MARIETTA MATERIALS INCListing on record	Mar 2, 2026	Award	69	676.57 USD	$46.7K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 1, 2025	Award	75	623.24 USD	$46.7K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 2, 2025	Award	76	616.40 USD	$46.8K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 3, 2025	Award	85	547.55 USD	$46.5K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 16, 2025	Award	308	552.86 USD	$170.3K	Unusual size	SEC
MARTIN MARIETTA MATERIALS INCListing on record	Mar 3, 2025	Award	96	483.14 USD	$46.4K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 3, 2024	Award	78	600.00 USD	$46.8K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 3, 2024	Award	87	534.16 USD	$46.5K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 4, 2024	Award	81	572.80 USD	$46.4K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 17, 2024	Award	293	581.69 USD	$170.4K	Unusual size	SEC
MARTIN MARIETTA MATERIALS INCListing on record	Mar 4, 2024	Award	76	577.71 USD	$43.9K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 4, 2023	Award	95	464.59 USD	$44.1K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 5, 2023	Award	99	446.41 USD	$44.2K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 2, 2023	Award	111	398.04 USD	$44.2K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 12, 2023	Award	362	400.57 USD	$145K	Unusual size	SEC
MARTIN MARIETTA MATERIALS INCListing on record	Mar 1, 2023	Award	122	359.87 USD	$43.9K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 2, 2022	Award	120	366.48 USD	$44K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 1, 2022	Award	127	347.41 USD	$44.1K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 2, 2022	Award	130	339.38 USD	$44.1K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 16, 2022	Award	443	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Mar 1, 2022	Award	116	379.40 USD	$44K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Dec 2, 2021	Award	109	403.51 USD	$44K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Sep 2, 2021	Award	115	381.25 USD	$43.8K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	Jun 1, 2021	Award	121	363.65 USD	$44K		SEC
MARTIN MARIETTA MATERIALS INCListing on record	May 17, 2021	Award	388	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC